java實現郵箱發送郵件

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第一步：封裝寄件者帳號密碼

 

import javax.mail.Authenticator;
import javax.mail.PasswordAuthentication;

/**
* 寄件者帳號密碼
* @author zhangdi
*
*/
public class MailAuthenticator extends Authenticator{

public static String USERNAME = "";
public static String PASSWORD = "";

public MailAuthenticator() {
}

protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(USERNAME, PASSWORD);
}

}

 

第二步：提供發送操作類

import java.util.Date;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;/**
* 郵件發送操作類
*
* @author zhangdi
*
*/
public class MailOperation {

/**
* 發送郵件
* @param user 寄件者郵箱
* @param password 授權碼（注意不是郵箱登入密碼）
* @param host
* @param from 寄件者
* @param to 接收者郵箱
* @param subject 郵件主題
* @param content 郵件內容
* @return success 發送成功 failure 發送失敗
* @throws Exception
*/
public String sendMail(String user, String password, String host,
String from, String to, String subject, String content)
throws Exception {
if (to != null){
Properties props = System.getProperties();
props.put("mail.smtp.host", host);
props.put("mail.smtp.auth", "true");
MailAuthenticator auth = new MailAuthenticator();
MailAuthenticator.USERNAME = user;
MailAuthenticator.PASSWORD = password;
Session session = Session.getInstance(props, auth);
session.setDebug(true);
try {
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
if (!to.trim().equals(""))
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to.trim()));
message.setSubject(subject);
MimeBodyPart mbp1 = new MimeBodyPart(); // 本文
mbp1.setContent(content, "text/html;charset=utf-8");
Multipart mp = new MimeMultipart(); // 整個郵件：本文+附件
mp.addBodyPart(mbp1);
// mp.addBodyPart(mbp2);
message.setContent(mp);
message.setSentDate(new Date());
message.saveChanges();
Transport trans = session.getTransport("smtp");
trans.send(message);
System.out.println(message.toString());
} catch (Exception e){
e.printStackTrace();
return "failure";
}
return "success";
}else{
return "failure";
}
}

}

 

第三步：測試

 

public static void main(String[] args) {        MailOperation operation = new MailOperation();        String user = "你的郵箱地址";        String password = "你的郵箱授權碼";        String host = "smtp.163.com";        String from = "你的郵箱地址";        String to = "目標郵箱地址";// 收件者        String subject = "輸入郵件主題";        //郵箱內容        StringBuffer sb = new StringBuffer();        String yzm = RandomUtil.getRandomString(6);        sb.append("<!DOCTYPE>"+"<div bgcolor=‘#f1fcfa‘   style=‘border:1px solid #d9f4ee; font-size:14px; line-height:22px; color:#005aa0;padding-left:1px;padding-top:5px;   padding-bottom:5px;‘><span style=‘font-weight:bold;‘>溫馨提示：</span>"                          + "<div style=‘width:950px;font-family:arial;‘>歡迎使用NET微活動，您的註冊碼為：<br/><h2 style=‘color:green‘>"+yzm+"</h2><br/>本郵件由系統自動發出，請勿回複。<br/>感謝您的使用。<br/>杭州恩意替電子商務有限公司</div>"                         +"</div>");        try {            String res = operation.sendMail(user, password, host, from, to,                    subject, sb.toString());            System.out.println(res);        } catch (Exception e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }

 

java實現郵箱發送郵件